Mold



Vw btofrmego y 2 Sheets-Sheet 1 W. E. NELSON MOLD -Filed Oct. 20, 1924Lu Il Il t April 7, 1925.

April 7, 1925. 1,532,924

W. E. NELSON MOLD I Filed Oct. 20, 1924 2 Sheets-Sheet 2 Q I ma f y W amM n A? -..di w. i 1w 0 a 4 9 L l l, l W o j @m j X f 0 p/ 1| ,f a pv 1gdm al 9 fw a m0 x h a 1 f. M M k a) a MMV Patented pr. 7, 1925.

UNITED STATES WILLIAM r.; NnLsoN',vor-Kaivsas cirinivirssouni'.

MOLD'.

To all 'whom t may concern.' l

Be it known that I, IViLLIAM E. NELSON,

a citizen of the United States, residing atl Kansas City, in the countyot Jackson and State ot Missouri, have invented certain new and usefulImprovements iiiMolds; and I do declare the following to be a full,clear, andeiract description ot' the invention, such as will enableothersskilled in the artv to which it appertains to make and use thesame.

vMy invention relates to improvements in molds designed 4prii'iiarilyfor use in the con# struction of concrete units, the principal objectbeing to provide a mold of the general character disclosed iii ,my U. S.Patent No. 1,433,905,A provided with improved mea-iis for holding theremovable side yrails inoperative position and for quickly releasingthem when desired. y y

With the foregoing in view, the invention resides in the novel subjectmatter hereinafter described and claimed, the description beingsupplemented by the accompanyii'ig drawings. i

Figure 1 is a top planview of a mold einbodying the improved holdingmeans for two removable side rails.

Figure 2 is an endelevation partly broken away and in section.

Figure is a vertical transverse sectional view on line 8-3 of Fig. 1.

Figure 4 is an enlarged view as indicated byline 4=4 of Figay v1.

Figure is a detail horizontal section on line 5-5 of Fig.- 4.

Figure 6 is a detail sectional view as indicated by line 646 of Fig'. 1.j

In the drawings above'brieiiy described,

l) designates a platform which includes ak horizontal floor 1 and aframework 2 upon which said floor is secured, the framework being bypreference mounted upon flangedv wheels (not shown) periiiittingr thermold to be vreadily moved along trackage from` one place to another.

In the construction shown, `the fra-me 2includes two parallel,longitudinal, angle metal bars 3 and a plurality of transverse bars 4bolted to the upper sides of said bars 3, certain of said bars 4 beingrprojected at one end beyond one longitudinal edge o f the floor'l, asindicated at. 5. The bars 3' also project beyond one end oi' the Hoor 1,and short longitudinal bars 6 are secured upon vertical sectional' v maybe passed through 'any ot the.openingsy vertical longitudinal said 3ai'idtlieir vprojecting` end portions;

the endm'ost of the bars 4 and said bars',

being jointly notched as Aindicated at 7 at f 60 thev .points at whichthey crosseacli other.`

Two edges ofthel plattornrP- are provided with stationary side' railsSand 9 respectively, which coactv with a pair of removable lar retainerfor'y a plurality ot, sectional I vmolds, such as those disclosed inthefpate'iit above` referred to. ,These section aljmclds are notshcfivifi'nas the present application; deals with the means for clampingtlierails i 10 and 11 in place aiidwith the iiovelfinan?.

ner ot 'nioiiii tiiig'suchclainpiiig means. 1 /fit' this point,:attention may bev directed tetue ffact that theaforelmentioiied rails1l) 11'are*disposedv along tl'iie side and end e'dges vofthe platformhavingl tlie'projecting'ends of the bars and The clamping means tor therailsinquestionare mounted on these-bars, as described below.k '4

Contacting with the lower side ofeacli'of.lk

the bars 4 which is provided with al projecting end., 5, and alsocontacting with yeach oi' the short', longitudinal bars 6, at the lowerside ot the latteigis a'v horizntalplate 12,

saidplateli'aving a suitable number (prefer-yiy ably'tw'o`oil-downwardly' projectingV ears 13 vformed. with va pluralityl Yofvertically .spaced bolt holes 14'. The inwardly turned, horizontal,inner end 15 of avertical arni A16',

is pivote/d .to the earslby a boltvl? which j 14, so that the arinniaybe' pivotally mounted at ditierent elevations, bringing :its upper en din proper relation with thereniovable rail 10 or 11,:as the case may be,whether this rail possessesa comparativelyshort vertical width,arelatively long width, or an'.

intermediate width, according to the thickness yof the `blocks .to beconstructed.l

, Contacting-with the upper side "ot each of" tliebai's 4 and, 6, whichare equipped with kice Y the plates 12, is another horizontal plate 18,i,

the vadj :icent plates 12 and 18 and the intern vening bar with whichthey contact, being'v prelierablyl secured- .together by ythru bolts 19and 20.' and-iiiV desired, lthe bolts 2O mayy also pass through' an"additional long'gitudiiiall bai' 2l which i-s'shown underlyingv thetrans.

hook, a bolt'23 preferably passes through it,

throu,f 1;h the plates 18 and 12, and through the bar` between saidplates. This hook is adapted to engage the arm 16 to hold it norklnallyin the upright position shown in the drawings.v The upper end of thisarm is. provided with a thrust device which is preferably in the form ofa screw 24-whose outer end is provided with a hand crank 25, the

inner end of saidA screwy being' engageable with the rail 10 or 11. Thisrail is by preff kerenee provided with an elongated cast metal latev 26having a socket 27 vto receive the inner end of the` screw 2l, and it ispre- I ferred thaty the screw shall decline toward the rail, so thatwhen it is tightened to force this rail inwardly,.it will also force`it'down- 'wardly and retain it in tight contact with the floor 1 uponwhich it slidably rests.

Tightening of the screw 24 places-a great deal of strain in, an outwarddirection upon the hook 22 which has 'a tendency to shift theplate 18outwardly. l

of course, resisted bythe three bolts.y 19, 20. l. and 28, but in ordertopro-vide additional Such shifting is,

resistance against any outward shifting of the plate 18, the innerendportion of this plate is preferably offset downwardly from its outerend portion and seated ina recess 28 formed in the upper side of the bari-or 6. The yportion y29y of the plate, Awhich joins the offset innerand outer end portions of -said plate, bears against one end wall 30ofthe recess 28 and thusan additional anchorage is provided to lpreventany outward shiftingof the bar 18. The construction-just described, alsoldisposes'the heads of the'bolts 19 and 20 in such positions as toprevent themy from interfering with yproper laying. of the ioorl. 1

.W hen placing the sectional ymoldsffn'ot Y shown) upon Ythe Hoor 1, allof the arms 16 ,serving also to force the rails downwardly` assumedownwardly swung positions and the rails 10 and 11 are remoyed." Whensaid molds are in'place however, the'railslO and 11 are properlypositioned upon edge portionsy of the ioor 1, the arms 16 are swunglupwardly and held bythe hooks 22, and the screws 24 are rotated toforce the rails 10 and 11 inwardly to their' proper, operativeposi- 1tions,the inward declinations of said screws into tight contact with thel'ioor. After the blocksha-vey been ycast vand* have set, the

lscrews 24 are" loosened sufficiently to permit y release of the hooks22,` andk when these vhooks are released,..it willy be seenvthat thearms 16will swing downwardly out of the way, permitting easy removal ofthe'k rails 10 and 11, allowing ,the completed concrete unitsv and thesectional. molds' to be readily k 'taken from the platform.

Excellent results have been obtained fromA L the constructionr hereindisclosed and such -construction is therefore' ypreferably, folresasa/ilowed. However, within the scope of the inventionk as claimed, numerousmodifications may be made. ltv is` also to be clearly understood thatwhile the `improved structure is preferably embodied ina car, adapted tobe moved along a track from a casting point to a ydrying point, thekinvention could well be embodied in a stationary rather than a iportable structure.

I claim: y

1. A mold comprising a platform, a removable rail at one edge thereof, avertically disposed arm spaced outwardly from said rail and edge, meanspivotally connecting the lower end ofl said arm with the platform', athrust device carried by the upper end of said arm for forcing theaforesaid rail inwardly, and releasable means connectingthe intermediateportion of said arm with the platform to hold the arm against outwardswinging under the influence of said thrust device.

i 2. A mold comprising Aa platform, va removable rail at one edgethereof, a vertically disposedarm spaced outwardly from said rail and.edge, means pivotally connecting the lower end of said arm with theplatform, a rthrust device carried by the upper end of said arm forforcing the aforesaid rail inwardly, anda horizontally swingable hooklpivoted to the platformk and normally engagingsaid armto hold thelatter against outward swinging under the influence vof the aforesaidthrust device.

3. A structure as specified in claim-1; said pivotal connecting meansbetween the arm and platform embodying means for permitan edge of thefloor, a removable rail at` Said edge of the platform, a Vverticalv armdisposed at thev outer end ofv said bar' and. having its lower enddirected inwardly under said bar, means pivotally connecting j.

said inturned end ofy said arm to vsaid bar,

means -on said projecting endof the bar re-l leasably engaged with the.army to hold fthe latter normally against outward-swinging,l

and a rail-engaging thrust device carried by the upper end of said arm.

' 6. A mold comprising a lplatform includ-fv ing a floor anda framestructure for supporting said floor, said frame structure having ahorizontal bar which projects beyond an edge of the floor, a removablerail atl said edge of the platform, a vertical arm disposed atth'e'outer end of saidbarand having its lower end directed inwardlyunder said bar, means pivotally connecting said inturned end of said armto said bar, a horizontally swingable hook pivoted to the upper side ofthe projecting end of said bar and releasably engaged with the arm tohold the latter normally against outward swinging, and a rail-engagingthrust device carried by the upper end of said arm.

7. A mold comprising a platform including a Hoor and a franie structurefor supporting` said floor, said frame structure having a horizontal barwhich projects beyond an ledge of the floor7 a removable rail at saidedge of?" the platform, a vertical arm disposed at the outer end of saidbar and having its lower end directed inwardly under said bar, ahorizontal plate contacting with the lower side of said bar and having adownward projection to which said in-v turned end of the arm is pivoted,a second horizontal plate Contacting with the upper i side of said barand extending to the outer end ofthe latter, bolts passing through thetwo plates and the intervening bar, a hori zontally swingable hookpivoted to the outer end of said second plate and releasably engagedwith the arni to hold the latter-normally against outward swinging, anda railengaging thrust device carried by the upper end of said arm.

8. A structure as specified in claim 6,;,the inner end of said secondplate being downwardly offset from its outer end, said'bar having arecess receiving said downwardly oiiset end, the connecting portionbetween the two ends of the plate being in abutting relation with oneend wall of said recess for the purpose set forth.

In testimony whereofv I have. hereunto affixed by signature.

' WILLIAM E. NELSON.

